package com.tanhua.server.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.tanhua.dubbo.server.pojo.RecommendUser;
import com.tanhua.dubbo.server.vo.PageInfo;
import com.tanhua.server.pojo.User;
import com.tanhua.server.pojo.UserInfo;
import com.tanhua.server.vo.PageResult;
import com.tanhua.server.vo.RecommendUserQueryParam;
import com.tanhua.server.vo.TodayBest;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.util.*;

@Service
public class TodayBestService {

    @Autowired
    private UserService userService;
    @Autowired
    private RecommendUserService recommendUserService;
    @Value("${tanhua.sso.default.user}")
    private Long defaultUser;
    @Autowired
    private UserInfoService userInfoService;

    public TodayBest queryTodayBest(String token) {

        User user = this.userService.queryUserByToken(token);
        if (null ==user){
            //token非法或者过期
            return null;
        }
        //查询推荐用户

        TodayBest todayBest=this.recommendUserService.queryTodayBest(user.getId());
        if (null==todayBest){
            //给出默认的推荐用户
            todayBest =new TodayBest();
            todayBest.setId(defaultUser);
            todayBest.setFateValue(80L);
        }
        //补全个人信息
        UserInfo userInfo  = this.userInfoService.queryUserInfoByUserId(todayBest.getId());
        if (null == userInfo){
            return  null;
        }
        todayBest.setAvatar(userInfo.getLogo());
        todayBest.setNickName(userInfo.getNickName());
        todayBest.setTags(StringUtils.split(userInfo.getTags(),","));
        todayBest.setGender(userInfo.getSex().getValue() ==1 ?"man":"woman");
        todayBest.setAge(userInfo.getAge());
        return todayBest;
    }

    public PageResult queryRecommendation(String token, RecommendUserQueryParam queryParam) {

        User user = this.userService.queryUserByToken(token);
        if (null == user){
            return  null;
        }

        PageResult pageResult = new PageResult();
        pageResult.setPage(queryParam.getPage());
        pageResult.setPageSize(queryParam.getPageSize());
        //具体查询
        PageInfo<RecommendUser> pageInfo = this.recommendUserService.queryRecommendUserList(user.getId(), queryParam.getPage(), queryParam.getPageSize());
        List<RecommendUser> records = pageInfo.getRecords();
        if (CollectionUtils.isEmpty(records)){
            //没有查询到推荐的用户列表
            return  pageResult;
        }

        //填充个人信息

        //收集推荐用户的id
        Set<Long> userIds = new HashSet<>(); //可以去重
        for (RecommendUser record : records) {
            userIds.add(record.getUserId());
        }

        QueryWrapper<UserInfo> queryWrapper = new QueryWrapper<>();
        //用户id参数
        queryWrapper.in("user_id",userIds);
        if (StringUtils.isNotEmpty(queryParam.getGender())){
            //需要性别参数查询
            queryWrapper.eq("sex",StringUtils.equals(queryParam.getGender(),"man")?1:2);

        }
        if (StringUtils.isNotEmpty(queryParam.getCity())){
            //需要城市参数查询
            queryWrapper.like("city",queryParam.getCity());
        }
        if (queryParam.getAge() != null){
            //设置年龄参数 条件:小于等于
            queryWrapper.le("age",queryParam.getAge());
        }


       List<UserInfo> userInfoList =  this.userInfoService.queryUserInfoList(queryWrapper);
        if (CollectionUtils.isEmpty(userInfoList)){
            //没有查询到用户基本信息
            return pageResult;
        }
        List<TodayBest> todayBests = new ArrayList<>();
        for (UserInfo userInfo : userInfoList) {

            TodayBest todayBest = new TodayBest();

            todayBest.setId(userInfo.getUserId());
            todayBest.setAvatar(userInfo.getNickName());
            todayBest.setTags(StringUtils.split(userInfo.getTags(),","));
            todayBest.setGender(userInfo.getSex().getValue() == 1?"man":"woman");
            todayBest.setAge(userInfo.getAge());

            //缘分值
            for (RecommendUser record : records) {
                if (record.getUserId().longValue() == userInfo.getUserId().longValue()){

                  double score = Math.floor(record.getScore());
                  todayBest.setFateValue(Double.valueOf(score).longValue());

                    break;
                }

            }

            todayBests.add(todayBest);
        }
        //按照缘分值进行倒序排序
        Collections.sort(todayBests,(o1,o2)-> new Long(o2.getFateValue() -o1.getFateValue()).intValue());

        pageResult.setItems(todayBests);

        return  pageResult;
    }
}
